「Ruby」joinを使って文字列を結合する

2021年10月27日

書式
対象文字列.join(“区切り文字")

使用例

#!/usr/bin/ruby
p "区切り文字：スペース"
p ["study","skill","become","smart"].join(" ")
p "区切文字：,"
p ["study","skill","become","smart"].join(",")
p "区切り文字:特手文字"
p ["study","skill",].join("tokyo")
p "区切文字列:-"
p ["study","skill","smart"].join("-")
p "区切文字列:+"
p ["study","skill","smart"].join("+")

結果

"区切り文字：スペース"
"study skill become smart"
"区切文字：,"
"study,skill,become,smart"
"区切り文字:特手文字"
"studytokyoskill"
"区切文字列:-"
"study-skill-smart"
"区切文字列:+"
"study+skill+smart"